Universal Speedball Extension only comes in a 3 inch, 6 inch, 9 inch version, or a bundle that includes all three lengths. The three versions of extension arms can be nestled together in a bundle, saving space in your kit. Each arm has pass-through slots and holes for 1/4-20 and 3/8-16 screws. Larger holes can be utilized for nested extension packing and organization. Universal Speedball components are compatible with any other brand of 1 inch (25mm) ball attachment like Ultralight Control Systems, Wooden Camera, etc. Product Specs Product Weight Product Dim. (WxLxH) 3inch extension 1.60oz 45g 1.00 x 1.00 x 3.75in 25 x 25 x 95mm 6inch extension 2.20oz 45g 1.00 x 1.00 x 6.75in 25 x 25 x 171mm 9inch extension 2.60oz 73g 1.00 x 1.00 x 9.75in 25 x 25 x 247mm
